Controversy is ensuing as Russia's announcement of the world's first registered COVID-19 vaccine, as Western countries, including the United States, and international health agencies have expressed concern.

US Minister of Health and Human Services Alix Aza stressed that "the first is not the first thing that matters when it comes to vaccines, and what matters is getting a vaccine that is safe and effective for the Americans and people around the world."

"We need transparent data from phase 3 clinical trials that show that the vaccine is safe and effective," Aza said.

Aza's comments appear to have indirectly pointed out that a vaccine developed by Russia has not been proven to be safe because it has not undergone phase 3 clinical trials.

A spokesman for the German Ministry of Health also said, "There is no known data on the quality, efficacy and safety of Russian vaccines."

The World Health Organization (WHO) also stated that "any vaccine requires rigorous review and evaluation of all essential data on safety and efficacy."

WHO spokesman Tarik Yasarevich said, "We are in contact with the Russian authorities and are in contact with the possibility of pre-qualification for the vaccine," he said. "It does not mean compromise with safety." 19 It was revealed that the vaccine'Sputnik V'was officially registered.

'Sputnik V'is named after the first artificial satellite launched by the former Soviet Union in 1957.

President Putin also said his daughter had been vaccinated by taking part in a clinical trial of the vaccine.

(Photo = Getty Image Korea)